KVM: MMU: Add drop_large_spte() helper

To clarify spte fetching code, move large spte handling into a helper. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
git-mirror · Aug 2, 2010 · a3aa51c · a3aa51c
1 parent 121eee9
commit a3aa51c
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Showing 2 changed files with 9 additions and 4 deletions.
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
@@ -1492,6 +1492,14 @@ static void link_shadow_page(u64 *sptep, struct kvm_mmu_page *sp)
 	__set_spte(sptep, spte);
 }
 
+static void drop_large_spte(struct kvm_vcpu *vcpu, u64 *sptep)
+{
+	if (is_large_pte(*sptep)) {
+		drop_spte(vcpu->kvm, sptep, shadow_trap_nonpresent_pte);
+		kvm_flush_remote_tlbs(vcpu->kvm);
+	}
+}
+
 static void kvm_mmu_page_unlink_children(struct kvm *kvm,
 					 struct kvm_mmu_page *sp)
 {

diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
@@ -360,10 +360,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 			kvm_flush_remote_tlbs(vcpu->kvm);
 		}
 
-		if (is_large_pte(*sptep)) {
-			drop_spte(vcpu->kvm, sptep, shadow_trap_nonpresent_pte);
-			kvm_flush_remote_tlbs(vcpu->kvm);
-		}
+		drop_large_spte(vcpu, sptep);
 
 		if (level <= gw->level) {
 			direct = 1;